CVE-2016-1503

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-17. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 6.3%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

dhcpcd before 6.10.0, as used in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before 2016-04-01 and other products, mismanages option lengths, which allows remote attackers to execute arbitrary code or cause a denial of service (heap-based buffer overflow) via a malformed DHCP response, aka internal bug 26461634.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
51
EG Risk 51/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation6% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
6.3%
EPSS %ILE
93rd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

April 18, 2016

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Sep 30, 2026
Patch available.
generic

1390ace71179f04a09c300ee8d0300aa69d9db09 - platform/external/dhcpcd - Git at Google

https://android.googlesource.com/platform/external/dhcpcd/+/1390ace71179f04a09c300ee8d0300aa69d9db09
generic

Nexus Security Bulletin—April 2016  |  Android Open Source Project

http://source.android.com/security/bulletin/2016-04-02.html
generic

dhcpcd: Multiple vulnerabilities (GLSA 201606-07) — Gentoo security

https://security.gentoo.org/glsa/201606-07
generic
http://www.securitytracker.com/id/1034601

Affected Packages

(2 across 2 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
dhcpcd5—
  • every version up to 6.10.1-1: fixed in 6.10.1-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
dhcpcd5—
  • every version up to 6.10.1-1: fixed in 6.10.1-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 22× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 162 total refreshes for this CVE.

  1. 2026-10-05 17:38 UTCEPSS rescore
  2. 2026-10-04 23:17 UTCEPSS rescore
  3. 2026-10-04 12:48 UTCOSV refresh
  4. 2026-10-03 14:21 UTCEPSS rescore
  5. 2026-10-01 19:43 UTCEPSS rescore
  6. 2026-09-30 14:58 UTCEPSS rescore
  7. 2026-09-30 09:11 UTCEG score recompute
  8. 2026-09-28 13:45 UTCEPSS rescore
  9. 2026-09-27 13:40 UTCEPSS rescore
  10. 2026-09-26 15:53 UTCEPSS rescore
  11. 2026-09-26 15:53 UTCEPSS rescore
  12. 2026-09-24 13:59 UTCEPSS rescore
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  14. 2026-09-19 15:35 UTCEPSS rescore
  15. 2026-09-18 19:22 UTCEPSS rescore
  16. 2026-09-17 19:21 UTCEPSS rescore
  17. 2026-09-15 03:05 UTCEPSS rescore
  18. 2026-09-15 02:14 UTCOSV refresh
  19. 2026-09-13 16:41 UTCEPSS rescore
  20. 2026-09-12 14:55 UTCEPSS rescore
  21. 2026-09-10 09:26 UTCEPSS rescore
  22. 2026-09-07 15:56 UTCEPSS rescore
  23. 2026-09-04 13:56 UTCEPSS rescore
  24. 2026-09-02 14:07 UTCEPSS rescore
  25. 2026-09-01 03:31 UTCEPSS rescore
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  1. 2026-08-30 19:12 UTCEPSS rescore
  2. 2026-08-27 14:20 UTCEPSS rescore
  3. 2026-08-27 02:00 UTCOSV refresh
  4. 2026-08-26 14:41 UTCEPSS rescore
  5. 2026-08-25 13:44 UTCEPSS rescore
  6. 2026-08-23 00:13 UTCEPSS rescore
  7. 2026-08-21 23:44 UTCEPSS rescore
  8. 2026-08-19 16:59 UTCEPSS rescore
  9. 2026-08-18 13:43 UTCEPSS rescore
  10. 2026-08-16 14:51 UTCEPSS rescore
  11. 2026-08-16 02:09 UTCEPSS rescore
  12. 2026-08-15 01:25 UTCEPSS rescore
  13. 2026-08-12 13:46 UTCEPSS rescore
  14. 2026-08-11 13:36 UTCEPSS rescore
  15. 2026-08-10 15:38 UTCOSV refresh
  16. 2026-08-09 13:42 UTCEPSS rescore
  17. 2026-08-08 16:32 UTCEPSS rescore
  18. 2026-08-06 13:42 UTCEPSS rescore
  19. 2026-08-05 19:12 UTCEPSS rescore
  20. 2026-08-04 15:04 UTCEPSS rescore
  21. 2026-08-04 10:32 UTCEPSS rescore
  22. 2026-08-02 02:22 UTCEPSS rescore
  23. 2026-08-01 04:11 UTCEPSS rescore
  24. 2026-07-30 16:23 UTCEPSS rescore
  25. 2026-07-30 01:26 UTCEPSS rescore
  26. 2026-07-28 15:31 UTCEPSS rescore
  27. 2026-07-25 16:30 UTCOSV refresh
  28. 2026-07-25 14:13 UTCEPSS rescore
  29. 2026-07-23 14:14 UTCEPSS rescore
  30. 2026-07-23 01:21 UTCEG score recompute
  31. 2026-07-22 22:01 UTCEG score recompute
  32. 2026-07-22 14:04 UTCEPSS rescore
  33. 2026-07-21 15:21 UTCEPSS rescore
  34. 2026-07-21 15:21 UTCEPSS rescore
  35. 2026-07-20 17:03 UTCEPSS rescore
  36. 2026-07-19 14:27 UTCEPSS rescore
  37. 2026-07-19 02:26 UTCEPSS rescore
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  39. 2026-07-18 10:00 UTCEPSS rescore
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  41. 2026-07-16 16:59 UTCEPSS rescore
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  43. 2026-07-15 16:54 UTCEPSS rescore
  44. 2026-07-15 16:54 UTCEPSS rescore
  45. 2026-07-15 01:56 UTCEPSS rescore
  46. 2026-07-15 01:56 UTCEPSS rescore
  47. 2026-07-13 22:26 UTCEPSS rescore
  48. 2026-07-13 06:09 UTCEPSS rescore
  49. 2026-07-12 05:43 UTCEPSS rescore
  50. 2026-07-12 05:43 UTCEPSS rescore
  51. 2026-07-11 08:23 UTCEPSS rescore
  52. 2026-07-09 19:05 UTCEPSS rescore
  53. 2026-07-08 15:10 UTCEPSS rescore
  54. 2026-07-08 11:05 UTCOSV refresh
  55. 2026-07-07 13:42 UTCEPSS rescore
  56. 2026-07-06 16:24 UTCEPSS rescore
  57. 2026-07-06 16:24 UTCEPSS rescore
  58. 2026-07-06 02:20 UTCEPSS rescore
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  60. 2026-07-05 02:27 UTCEPSS rescore
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  62. 2026-07-01 15:02 UTCEPSS rescore
  63. 2026-06-30 23:19 UTCEPSS rescore
  64. 2026-06-29 14:03 UTCEPSS rescore
  65. 2026-06-28 04:53 UTCEPSS rescore
  66. 2026-06-27 03:05 UTCEPSS rescore
  67. 2026-06-27 03:05 UTCEPSS rescore
  68. 2026-06-25 13:47 UTCEPSS rescore
  69. 2026-06-25 13:47 UTCEPSS rescore
  70. 2026-06-24 14:02 UTCEPSS rescore
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  72. 2026-06-23 21:30 UTCEPSS rescore
  73. 2026-06-22 14:23 UTCEPSS rescore
  74. 2026-06-21 01:57 UTCEPSS rescore
  75. 2026-06-21 01:57 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2016-1503?
CVE-2016-1503 is a critical vulnerability published on April 18, 2016. dhcpcd before 6.10.0, as used in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before 2016-04-01 and other products, mismanages option lengths, which allows remote attackers to execute arbitrary code or cause a denial of service (heap-based buffer overflow) via a…
When was CVE-2016-1503 disclosed?
CVE-2016-1503 was first published on April 18, 2016, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-1503 actively exploited?
CVE-2016-1503 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.3% probability of exploitation in the next 30 days (93rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2016-1503?
CVE-2016-1503 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2016-1503?
A fix for CVE-2016-1503 is available: update to the fixed version the vendor names in its advisory.

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